6-(Bromomethyl)-2-(difluoromethyl)-3-methylpyridine-4-acetonitrile
2-(Bromomethyl)-6-(difluoromethyl)-5-methylpyridine-3-acetonitrile
6-(Bromomethyl)-4-(difluoromethyl)-2-methylpyridine-3-acetonitrile
2-(Bromomethyl)-4-(difluoromethyl)-6-methylpyridine-3-acetonitrile